The elements `Z = 117`and `120` have not yet been discovered. In which family/group would you place these elements?

Options

A. alkaline earth metals, halogens
B. halogens, alkaline earth metals
C. alkali metals, halogens
D. halogens, alkali metals

Answer

B

Explanation

Element `Z = 117` has electronic configuration `[Rn] 5f^(14) 6d^(10) 7s^(2) 7p^(5)` and hence, will belong to the halogen family. Element `Z = 120` has the electronic configuration `[Uo]8s^(2)`and hence, will belong to group `2` (alkaline earth metals).